Boring apparatus for embroidering-machines.



F. ,W. LKSSIG. BORING APPARATUS FOR BMBROIDBRING MAGHINBS. APPLIOATION FILED BBPT.10,1910. 1,107,622. Patented Aug. 18, 1914.

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IHE AORRIS PETERS 60.,PHO1D-LIIHQ. WASHING TON. D. C

F. W. LKSSIG.

BORING APPARATUS FOR BMBROIDERING MACHINES.

APPLICATION FILED SBPT.10,1910.

1,107,622n Patented Aug. 18, 1914.

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/ v 414 Chow/y THE NORRIS PETERS CO.. PHDm-LITHQ, WASHINGTON. D. C.

P. W. LA'SSIG. BORING APPARATUS FOR EMBROIDERING MACHINES. APPLICATION FILED SEPT. 10,1910.

1,107,622, Patented Aug. 18, 1914.

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Wilnessea .Tnvanlor:

THE NORRIS PETERS CO., PHOTO-LITHO-, WASHINGTON, D. Cv

UNITED STATES PATENT OFFICE.

FRIEDRICH WILHELIVI LASSIG, OF GHEMNITZ, GERMANY.

BORING APPARATUS FOR EMBROIDERING-MAGHINES.

To all whom it may concern Be it known that I, FnmoRIoi-I WVim-rnnu Lassie, a subject of the Emperor of Germany, and a resident of Chemnitz, in the Empire of Germany, have invented certain new and useful Improvements in Boring Apparatus for Embroidering-Machines, of which the following is a specification.

This invention relates to a boring apparatus for embroidering machines.

The drawings illustrate the manner in which the invention is put into practice.

Figure 1 shows a side-view of the new boring apparatus in connection with a frame of the embroidering machine. Fig. 2 shows the same parts as Fig. 1, seen from thefront. Fig. 3 shows the boring apparatus apart seen from the rear. Fig. 41 is a horizontal cross section on 0-?) of Fig. 1, but illustrated on a larger scale than Fig. 1. Figs. 5 to 8 are diagrammatic views illustrating the operation of certain of the parts.

In the frame 1, 2, 3 the two shafts 1 and 5 are capable of being turned around.

41 is the driving shaft and 5 is the shaft of the intermediate belt gearing. Several. levers 7 are fixed on the two shafts 6, of which the drawing (see Fig. 2) shows only one in the upper row and one in the lower row. In Fig. 1 the levers 7 are not visible, because they are covered by the lovers 11, which are of the same shape and dimension, as the levers 7. Each lever is connected with a moving slide rod 8. On the line 00-03 in Fig. 1, embroidery is stretched in a vertical plane. A large number of boring tools 10 are fixed in rows to long rails, f). The rails 9 are fixed to the rear ends of the said slide rods 8. The upper boring driving shaft 6 is positively connected with the lower shaft 6 by levers 1.1 connecting rods 12, arms 1.1 and 15, which are fixed to the intermediate shafts 13, and by the vertical coupling rod 16. On. the shaft 17 there is suspended a pendulum-banger-fralne 18 with its two naves 19, 20 which is loose and capable of being turned around. At its lower end 21 there is fixed the ournal bolt 22 which is immovably fixed and on which there are the belt pulley 23 and the eccentric disk 24 which are loose and capable of being turned around. The two parts 28 and 24 are connected together. The eccentric disk 24 is rotatory in the eccentric strap 25, which forms the lower end of the eccentric rod 26. The eccentric rod 26 consists of a Specification of Letters Patent.

Application filed September 10, 1910.

Patented Aug. 18, 1914.

Serial No. 581,501.

long lower arm and a shorter upper arm. Between the two parts it is slotted so that it can slide up and down on the link block 27 and swing to and fro at the same time around the shaft 17, when the eccentric 24 moves about its axle 22. The moving rod 25) being directed obliquely downward is connected with the highest point 28 of the eccentric rod 26, and its lower end is formed as a slide rod 30 fitting snugly in a guide bracket 31. The guide bracket 31 is movable about a horizontal pivot fixed in the frame 1. The rod 29, 30 has a box-shaped extension 32 .(see Fig. 1 and Fig. 3) in which there is a rotatm'y cube The cube 33 has a transvcrsal hole, in which the cylindrical lever 34: is slidable to and fro. The lever 3 1 is rigidly fixed to the shaft 17. The eccentric rod 26 is supplied with a handle 35. To the frame 1 is fixed an adjusting curve 36, in which there are holes to put in a stop bolt in order to limit the oscillations of the eccentric rod 26.

On the shaft 17 are arranged two belt pulleys 37, 38 which are loosely rotatory, Fig. 1. The axle of the pulley 38 is movable. The two pulley rims 37, 38 are formed as a tame-coupling. The nave of the pulley 38 has a groove 39 running around it and into which gears the roller 10 of the lever 11, 42. A spiral spring 43 operates to compress the two parts 38 and 37 of the cone-coupling.

In the frame 1 there is immovably fixed a horizontal bolt 44, on which is placed the lever 15, 16 (see Fig. 1, Fig. 8 and Fig. l) which is loosely rotatory. The two ends of the levers 4.5 and 4-2 touch each other at their sloped faces. \Vhen the lever 45, L6 is revolved the oblique face of lever 15 presses the oblique face of lever 42 to one side and the cone-emailing is opened. The belt drive is ell'ccted from the intermediate shaft 5 by way of the two bolts 19 and 47. On the shaft 17, Fig. 2, the lever 50 is rigidly fixed, and is movably connected by the drawing rod 51 with coupling rod 16.

The practice of using the boring apparatus as described is as follows, considering Figs. 5 to S. Fig. 5 shows t1 3 arrangement of the mechanism when the apparatus is not in operation. At such time the eccentric rod 26 has been swung to one side by 3), so that the upper end 45 of the lever 46 presses against the lever 42 (see Fig. 4:) and the cone-coupling 37, 38 is ungeared. In that position of the parts (see Fig. 5) the boring tools 10 are drawn back from the embroidery material represented by am. When the boring is to be begun, the securing bolt is drawn out from the hole 52 and the eccentric rod 26 is swung in the direction of the arrow 53, Fig. 1, as far as it is necessary for the dimension of the holes to be bored. Inasmuch as the boring tools 10 taper, the holes in the embroidery stuff w-a: become larger, the deeper the boring tools are pressed inward. For instance when Fig. is compared with Fig. 7, it will be seen that in Fig. 7 the boring tools 10 extend farther into the stuff 00-00, but are far distant from it in Fig. 5, because in Fig. 7 the eccentric rod 26 has been swung to the right and in Fig. 5 to the left.

Between Fig. 5 and Fig. 6 there is the distinction that (see also Fig. 1) in Fig. 5 the eccentric 24: stands above the axle 22, but in Fig. 6 under the axle. Consequently the boring tools 10 in Fig. 5 are also far distant from the stuff w-m and in Fig. 6 extend into it. There is also the same distinction between the Figs. 7 and 8, as explained before.

From all the foregoing it results that the boring tools 10 very quickly go into and out of the stuff m0c when they are pushed to and fro by the quick revolution of the belt pulleys 23, 37 and secondly that the bored holes turn out deeper or less deep, in proportion as the eccentric rod 26 has swung more in the direction of the arrow 53 (Fig. 5) or more in the direction of the arrow 55. If it is desired not to bore quickly with mill power, but to work slowly and carefully when making quite fine embroideres, the belt 49 (Fig. 1) can be thrown off and the handle moved to and fro with the hand in the direction of the arrows 53, 55.

Heretofore boring apparatuses were not interchangeable from hand driven to power driven, but were either driven by hand or by power according to the construction of each particular machine, and were not so constructed as to be convertible from hand driven to power driven or vice versa as might be desired.

Another valuable quality of the new boring-apparatus is that the workman can eX- actly feel by touch of the hand on 35, even when the boring-apparatus is driven with mill-power, whether the boring tools 10 meet with a hard obstacle. Until now it was a great annoyance that the mill-power drove the boring tools against the embroidery stuff cccc by great force, just as much whether the points of the boring tools pierce into a thin soft stuff or whether the points of the boring tools meet with the thickly stuffed places of the embroidery pattern. In the latter case fractures either of the boring tools or of the machine often happened, or the workman might thereby meet with an accident. All these imperfections have been removed by the present invention.

What I claim and desire to secure by Letters Patent is 1. In a boring apparatus for embroidering machines, the combination with the boring points, of a shaft connected with the boring points,.a rod mounted to rock and to slide about" said shaft, a. rod hinged to said rocking rod, and'means connecting said hinged rod to the shaft to reciprocate the boring points, substantially as described.

2. In a boring apparatus for embroidering machines, the combination with the boring points, of a shaft connected with the boring points, an eccentric-rod slidable and rotatable about said shaft, a rod hingedto said eccentric-rod and a lever connected to said shaft and having a sliding and rocking connection with said hinged rod whereby movement is transmitted from the eccentric rod to the shaft, substantially as described.

3. In a boring apparatus for embroidering machines, the combination with the boring points, of a shaft connected with the boring points, an eccentric-rod slidable and rotatable about said shaft, a rod hinged to said eccentric-rod, a rocking guide in which the lower end of the hinged-rod is slidable, and a lever connected to the shaft and having a sliding and rocking connection with the hinged-rod for the transmission of movement from the eccentric-rod to the shaft, substantially as described.

4. In a boring apparatus for embroidering machines,.the combination with the boring-points of a shaft connected with the boring points, a swinging frame carrying a belt pulley and eccentric, drive-pulleys, one of which is connected with the belt-pulley of the swinging-frame, an eccentric-rod connected with the eccentric of the swinging frame, a rod hinged to the eccentricrod, a lever connecting said hinged rod and the abovementioned shaft, and means coacting with the drive-pulleys and eccentric rod to unclutch the drive-pulleys, and stop the shaft at a predetermined movement of the eccentric-rod, substantially as described.

FRIEDRICH WILHELM LiiSSlG.

Witnesses CARL FRIEDRICH VfAL'ri-inn, ltu'DoLrrI GRAEBER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of- Eatents, Washington, I). U. 

